DIY Dress Extension: a Fix for a Too-Short LBD

Fixing a cute little black dress that’s borderline too short with a DIY dress extension made out of black georgette fabric and attached with hook and eye loop cotton tape.

I have a cute black dress from H&M (snatched for $3) that’s too short. It looks fine when I’m standing – the hemline extends past my fingertips, but once I try to sit down or squat, oh boy…I have an inappropriate lady parts situation.

Luckily, I have a roll of black poly georgette fabric scrap (I got it from Fabmo, a designer material rescue organization). It’s only about 12 in. long, but the width is uh, long. I love my LBD but I want to avoid awkward public situations, so I decided to make a DIY dress extension from the black poly georgette fabric.

I want to do something a little different than the typical maxis with minis trend (i.e. see-through maxi layer on top of a mini skirt or dress). With some help from black hook and eye loop tape, I’d say the extended dress looks pretty good!

Never Miss a Post

DIY Dress Extension Materials

Black sheer fabric – naturally, it’s better to have a piece of fabric that’s as long as you need it to be instead of having to sew three separate fabric panels like I did. But it’s no deal breaker if you have less-than-ideal-length fabric, IMO.

Steps Overview

I did not document the in-progress pictures, mostly because it’s hard to take pictures of black on black on black fabric layers with my phone (and I dislike using flash).

So in place of in-progress pictures, I made this overview diagram below; the fold line is the center front and the diagonal cut line is the center back. I also took detail pictures of the DIY dress extension.

I cut three strips of the black sheer fabric in gradually increasing length. The shortest one is as long as the circumference of my LBD’s hemline plus seam allowance. The longest one is cut as long as the circumference of my longest stride when walking in my 4 in. heels (which is about 50″) plus seam allowance.

I stitched the three strips of fabric together, going slowly as the sheer fabric bruises easily. I also did not do any back stitching to ensure minimal puckering (it still happened, though).

I used Stitch Witchery and an iron to bond the “eye” loop part of the tape to the inside of the dress’ hem. Cut the excess tape.

I laid the hook tape on the top part of stitched-together sheer fabric. After making sure the length of the “hook” part of the tape matches the already fused “eye” part plus seam allowance, I cut the fabric to form the center back line. Then, I fused the hook tape to the top part of the fabric, on the wrong side.

I stitched the center back shut, keeping around 10 in. at the bottom free.

I fused the hook and eye loop tape on either side of the bottom opening.

At this point, I found out that the front part of the DIY dress extension was too long, so I made a slight high-low hemline at the bottom.

I finished it off with some black lace hand stitching for subtle decoration.

I hope the overview helps…I really consider doing this with video next time, but I just cannot do that kind of time commitment at this point. Please ask me if you need any clarification for the steps! After the DIY dress extension was done, I took some detail pictures below.

Detail Pictures

Below is how the LBD’s front hemline looks like with some parts of the DIY dress extension unhooked.

Here’s what it looks like near the center back of the LBD’s hemline, again with some parts of the extension unhooked.

You can see the fused eye loop tape near the dress’ hemline and the unhooked top line of the DIY dress extension. This is taken near the center back, just like the previous photo.

When the DIY dress extension is fully hooked to the dress, this is what it looks like from the back. You can see a white-ish glue stain on the left. Word of caution: do not apply fabric glue to visible part of sheer fabric. I cannot, for the life of me, erase that stain. *sigh*

This is the bottom of the DIY dress extension from the back when both sides are free (unhooked).

Now this is how it looks like when both sides are closed with hook and eye loop tape.

The Result

So after all was said and done, here’s my black H&M dress with DIY dress extension attached! I keep the bottom part of the back free (unhooked) to give a clearer picture. I like that DIY dress extension is detachable, and I think the overall feel of the dress changes a bit dramatically when the extension is on.

It’s a cute LBD without the extension, and it’s a more romantic formal affair gown with the extension on. I love it.

So what do you think? One thing I did not mention is that I ALWAYS walk slow in high heels. When I walk slowly in heels and a mini dress, I got uncomfortable quickly. Now, this DIY dress extension gives me the perfect excuse to walk slowly.

Sshh, don’t tell anyone :)

Thanks for reading; until next time,Musank

Disclaimer: I may earn a small commission for my endorsement, recommendation, testimonial, and/or link to any products or services from this website. Thank you for your support!

Inspired by Rei Kawakubo’s take on cage dress trend during Comme des Garçons AW 2008-9 collection, I wanted to create a similar look, albeit with a few twists: delicate lingerie look and color combos inspired by a Alexander McQueen SS 2018 dress. The result is an enchanting cage dress that’s somewhat fragile yet bold, and I styled it with 80s influence of pearls and fingerless gloves.